For one type of object, this quantity is proportional to the cube of the speed of light and one-fourth the
 area of the object. For an ideal gas, this property approaches negative infinity as temperature approaches
 absolute zero, as a consequence of the natural logarithm term in the Sackur-Tetrode equation. In
 information theory, it is proportional to the sum over all po
For one type of object, this quantity is proportional to the cube of the speed of light and one-fourth the
 area of the object. For an ideal gas, this property approaches negative infinity as temperature approaches
 absolute zero, as a consequence of the natural logarithm term in the Sackur-Tetrode equation. In
 information theory, it is proportional to the sum over all possible values of a random variable of the
 quantity p sub i times natural log of p sub i. That relation is derived from a similar equation, stating it is
 proportional to the natural log of the number of microstates of a system, elucidated by Ludwig Boltzmann.
 For 10 points, name this ever-increasing quantity that measures the amount of disorder in a system.
For one type of object, this quantity is proportional to the cube of the speed of light and one-fourth the
 area of the object.
{entropy} [prompt on {S}]